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Abstract #4014

Targeted and untargeted NMR phytometabolomics for polar chemosensory markers and signatures

Aruna Singh1, Dushyant Kumar1, and Rama Jayasundar1

1Department of NMR, All India Institute of Medical Sciences, New Delhi, India

The potential of proton NMR metabolomics to classify medicinal and nutraceutical plants based on their chemosensory property such as taste has been explored in this study. Polar fractions obtained by dual phase (chloroform-methanol/water) extraction of select plants (n=48) from four chemosensory groups were studied using water suppressed 1D proton NMR spectroscopy. Untargeted metabolomics showed distinct chemosensory based clustering using Partial Least Square Discriminant Analysis. Using targeted metabolomics, chemosensory phytomarkers like α- and β- glucose (sweet), swertiamarin (bitter), trigonelline (pungent) and quercetin (astringent) were identified. The study has shown that NMR can play an important role in sensory science.

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